Re: Will Digital SLRs improve consumer 35mm zoom lenses?

[Joseph Tainter]

"> I have been warned by some dSLR enthusiasts (among them the guy 
mentioned here: 
http://www.dpreview.com/news/0307/03070801nikkor1224review.asp)
>that some of my lenses, especially zoom lenses, may not be good enough
>to use on a digital SLR, even if they are quite good with my current
>cameras."

Could someone explain why some existing lenses may not be "good enough" 
to use with a digital slr? Many of us are waiting for the right digital 
slr precisely so we can use our existing lenses with it.

Joe